Image Path When Using CSS to style UIWebView

I am loading a CSS file to style a UIWebView. I would like to have an inline "play" button when the CSS det开发者_开发技巧ects a video. I have it working except it is not loading the image (it is loading the image placeholder but not the image). I'm using the following CSS:

span.vvqbox:after { content:url(watchvideo.png) }

The .css file is in the same directory as the .png.

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Assuming that you are loading a local html file (that loads a local css file) and you are using the - (void)loadHTMLString:(NSString *)string baseURL:(NSURL *)baseURL method of UIWebView you will need to set the baseURL to your bundle so the webview knows where to load the images.

[webview loadHTMLString:htmlString baseURL:[[NSBundle mainBundle] bundleURL]];